Cup shelf



FIG. 1 is a top view of a cup shelf according to my/our design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a right side view thereof, with the left side view thereof being a mirror image thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom perspective view thereof, from the top, right corner thereof; and,

FIG. 7 is a front perspective view thereof, shown for environmental reference.

The broken lines represent environment or structure of the cup shelf and do not form any part of the claimed design. 

The ornamental design for a cup shelf, as shown and described. 